Filter



(No'ModeL) J. S. SMART.

, FILTER, 1

N'0.Z59,725. Patented June 20. 1.882.

WTI EBBES.

UNIT STATES PATENT O FICE.

JAMES s. SMAET, OF SALEM, MASSACHUSETTS.

FILTER.

SPECIFICATION forming part of Letters Patent No. 259,725, dated June 20, 1882. i Application filed February 8,1882. (No model.)

To all whom it may concern:

Be it known that I, JAMES S. SMART, a citizen of the United States, residing at Salem, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Water-Filters; and I do hereby declare that the-same are fully described in the following specification and illustrated in the accompanying drawings.

This invention relates to improvements in water-filters, and it iscarried out as follows, reference being had tothe accom pan yin g drawings, on which- Figure 1 represents a plan view. Fig. 2 represents a longitudinal section on the line A B shown in Fig. 1. Fig. 3 represents a cross-section on the lineGDshown in Fig. 1; and Fig. 4 represents a side elevation of the plug-filter as-detached from the spherical outer shell.

Similarletters refer to similar parts wherever they occur on the different parts of the drawings.

a is the outer sh ell or spherical chamber, having screw-threaded collar a in its upper end for attaching it to the screw-threaded end of a faucet, as usual.

at is the nozzle or outlet for the water in the under side of the shell a, as shown in Fig. 2. In one piece with the shell a are cast the four division-walls and bearing-surfaces, b b b b, as

"shown in Fig. 3.

cis thefilter-plug inserted through the screwthreaded opening a into the shell to in such a manner that its slightly-tapering outer surface bears water-tight against the bored-outinner ends of the walls b b b b, as shown in Fig. 3. The plugcis held against its bearingsurfaces 11 b b b by means of the screw-threaded cap 01, screwed into the screw-threaded side opening, a, and provided with a packin g-rin g, d, between it and the shell a, and a stuffingbox, at dt, on its outside, through which the spindle c of the plug 0 projects, said spindle being provided with a suitable handle, 0, in its outer end, as usual, by means of which the and direct channel, 9, which permits of the water passing through the filtering-plug without being filtered when the plug is moved at a right angle to theposition, as shown in-Fig. 3.

c is a detachable screw-threaded cover in the inner end of the plug 0, which, when removed, allows for filling the hollow plug 0 with the desired filtering material.

The filter is reversible-that is, it may be turned around its axis so as to allow the water to enter the plug from either of the net tings f f. A

This improved filter is very simple in its construction. Its shell a is'cast in one single piece with the divisions and bearings b b b b, and the tapering or cylindrical plug 0 being fitted water-tight against such bearing-surfaces, the use of diaphragm or ring packin gs is entirely dispensed with, and I am thus enabled to construct a water-filter of very few parts, all very durable and not liable to get out of order.

This improved filter may be used as a cutoff by filling up the straight passage 9, it'so desired.

What I wish to secure by'Letters Patent, and claim, is-

The herein-described water-filter, consisting of the shell or case a, with internal divisions and hearing-surfaces b b b b for the cylindrical or slightly-tapering hollow plug 0, with its strainers ff, filtering material 0, and direct channel 9, as and for the purpose set forth.

In testimony whereof I have affixed my Signature in presence of two witnesses.

JAMES S. SMART. 

